We have used the hook method to measure the gf value of 8.39 × 10-3 for the 6s21So-6s6p3P1 intercombination line at 7911.38 Å of Ba I.
© 1978 Optical Society of America
W. H. Parkinson and F. S. Tomkins, "The g ƒ value of the intercombination line of barium, Ba I," J. Opt. Soc. Am. 68, 535-535 (1978)